Finding the Fourth Proportional to 14,161.56, 19,543.20 and 7,788.84

Step by Step Solution

1. Step 1: Write the proportion equation
   14,161.56 : 19,543.20 = 7,788.84 : x
2. Step 2: Convert to fraction form
   14,161.56/19,543.20 = 7,788.84/x
3. Step 3: Cross multiply
   14,161.56x = 19,543.20 × 7,788.84
4. Step 4: Simplify right side
   14,161.56x = 152,218,857.89
5. Step 5: Solve for x
   x = 152,218,857.89/14,161.56
6. Step 6: Final answer
   x = 10,748.74